IB Mathematics - TI-nspire Codes (Free Marks in the Exam!)

Learn to use TI-nspire codes to earn free marks in exams, and cover core topics like systems of linear equations, graphs, and key tests such as t and chi-square.

Explore solving a system of linear equations to determine a, b, c in f(x)=ax^2+bx+c using TI-nspire, finding the vertex, x-intercepts, and the axis of symmetry.

Explore finding intersections of arithmetic and geometric sequences via graphs using TI-nspire for exam questions; compute Charlie's day 20 distance and Daniela's, and determine when Daniela surpasses Charlie.

Use the TI-nspire to compute mode, mean, and standard deviation from a temperature dataset, listing data in a spreadsheet and reporting mean 13.1 and sigma 2.21 to three significant figures.

Perform a two-sample t-test with pooled variance to compare mean egg weights from black keys versus white keys, using TI-Nspire; p-value 0.177 implies insufficient evidence to reject null at 10%.

Assess whether five-day data support model with a chi-square goodness-of-fit test at 5% significance; mean is 92, df 4, chi-square 8.54, p-value 0.0736, indicating insufficient evidence to reject the null.

Use the GDC finance solver to analyze fixed deposits and loans with 6.4% interest compounded quarterly, mastering present value, future value, and monthly payments.

Learn to solve definite integrals on the TI-nspire with lower and upper bounds. Explore complex numbers using conjugates, real and imaginary parts, and polar or exponential forms.